I recently did my whole pedal board over with all true bypass analog EHX pedals.What problems can I run into?I also keep hearing about buffering.Can anyone explain any of this to me?
When you have all true bypass pedals, and all the pedals are off, then the total capacitance of all the cable -- patch cables, cables between guitar and board and between board and amp -- is loading the guitar.
That capacitancewill have an impact on the guitar's upper harmonics and tonal balance. More capacitance will be darker, less capacitance will be brighter.
Sometimes, if you have enough length of cable and/or the cable is high enough capacitance, the impact on high frequency content will be problematic -- your system will sound dark and lack sparkle, then change when you switch a pedal on. But in circumstances with, say around 35 feet of total signal chain length or less, if you use low capacitance cable, it's my experience that you can likely avoid any problematic darkening.
Or you can put a buffer with an impedance that matches your amp's (typically 1M ohm) input impedance near the front of the signal chain. A buffer loads the guitar with it's input impedance and decouples the guitar from the following devices and cable, so that the capacitance of the following cable is no longer loading the guitar. Buffers however, aren't perfect. They reduce the sense of amp responsiveness and feel and most are very slightly less than unity gain. Some pedals work by loading the guitar and/or don't respond well to a low impedance signal so they need to be ahead of buffers. Nothing's perfect.
Note: all of this only matter when all the true bypass pedals are off. The first pedal you switch on effectively acts like a buffer, loading the guitar with it's input impedance and decoupling the following devices from loading the guitar.
kimanistar said:This was very helpful.But I still have a few things to add.Number one I use couplers and high quality cables on my board and number two I never shut anything off.So does this make a difference?I'd also like to know if you could recomend a pedal that could work as a buffer.Preferably from EHX.
What I meant was I always have something on.I actually have an LPB-1.That sounds like a really good idea.If you're looking for something to "act" as a buffer from EHX, the only thing I can recommend is the LPB-1, which is supposed to be a neutral clean boost, which you could set low and leave on all the time.
What do you mean by "never shut anything off"? If I had all my pedals on at once I'd have seriously nasty tone with overdrives, a fuzz, chorus, flange, delay, and roto-sim all on at once.